OK, so I am reading the Corporate Guide. Good stuff, and I totally get extraterritoriality. Here's my main question though

How many people, on average, are corporate citizens? In the UCAS, CAS, NAN, whatever. Are most of these people dual citizens, with corporate-only citizenship reserved for the really high level employees?

Also, the Guide makes a big deal out of corporate enclaves. Do most corp employees and/or citizens live in these enclaves?

I'm assuming that there is a majority of the population that works for either an A rated corporation or lower, or for one of a megacorp's parts that is not extraterritorial or super important, like a retail store or a random junk factory. The Guide paints a pretty bleak picture of life outside a corp enclave, but I also would assume that, outside the Barrens, the corp Guide may be exaggerating things. Or, maybe not.

Anyway, just looking for input to help clear this up for me.

I'm not sure if there are any clear canon answer to this. There are percentage of people "affiliated to a corporation" in city's statistics, but to my knowledge, it has never been told clearly what it meant.

Yeah, I think Blade's right. Some of the early stories seem to imply that corporate citizens have citizenship to the corp alone. Sam Verner isn't allowed to leave Renraku property without a good reason and an escort for example. I'd probably say that those people with mid-level and above positions at an AA or AAA corp would be corp exclusive citizens. Everyone else just works for a corp/subsidiary, they're not owned by one.